Warning! Mount Ibu Erupts Again This Afternoon (Thursday, September 11, 2025)

Mount Ibu in North Maluku erupted again on Thursday (September 11, 2025) at 4:15 PM WIT. In the last week, Mount Ibu has erupted 17 times.

Reporting eruption information from the Center for Volcanology and Geological Hazard Mitigation (PVMBG) via the MAGMA Indonesia application, the height of the ash column was observed to be around None meters above the peak or None meters above sea level.

No visual eruption was observed. The eruption was recorded on a seismograph with a maximum amplitude of 28 millimeters and a duration of 62 seconds.

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According to the MAGMA Indonesia volcano activity report, Mount Ibu''s activity level is at Level II (Alert). Seismic observations on September 11, 2025, from 00.00-23.59 WIT, showed 128 eruption/explosive earthquakes with amplitudes of 8-28 millimeters and earthquake durations of 31-71 seconds.

Furthermore, there were 14 harmonic earthquakes with amplitudes of 2-3 millimeters and earthquake durations of 17-73 seconds, and 110 low-frequency earthquakes with amplitudes of 2-10 millimeters and earthquake durations of 17-29 seconds.

PVMBG advises the public around Mount Ibu and visitors/tourists not to engage in activities within a 2-kilometer radius and a sectoral expansion of 3.5 kilometers towards the crater opening in the northern part of Mount Ibu''s active crater.

Throughout 2025, MAGMA Indonesia has recorded 6,047 volcanic eruptions across Indonesia. Mount Semeru in East Java had the most eruptions (2,423 times), while Mount Ibu erupted 2,219 times.

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